huiting/miniprogram/pages/message/message.js

const app = getApp()
const util = require('../../utils/util.js')

Page({

  /**
   * 页面的初始数据
   */
  data: {
    hasUserInfo: false,
    messageId: '',
    messageInfo: {},
    like: false,
    loading: true,
    showEdit: false,
    pageToken: 0,
    messageQuestion: [],
    questionText: ''
  },

  getPublisherInfo: function () {
    wx.navigateTo({
      url: '/pages/publisher/publisher',
    }).then(res => {
      res.eventChannel.emit('loadCommonData', {
        data: this.data.messageInfo.publisher
      })
    })
  },

  editMessage: function () {
    wx.navigateTo({
      url: '/pages/messagePublish/messagePublish?id=' + this.data.messageInfo.pub_id +
        '&msg_id=' + this.data.messageId
    })
  },

  deleteMessage: function () {
    wx.showModal({
      content: "确认删除信息？",
      confirmColor: "#009195"
    }).then(res => {
      if (res.confirm) {
        wx.showLoading({
          title: '正在删除'
        })
        wx.cloud.callFunction({
          name: 'deleteMessage',
          data: {
            msg_id: this.data.messageId
          }
        }).then(res => {
          wx.hideLoading()
          if (res.result.status !== 'OK') {
            wx.showToast({
              title: res.result.errMsg,
              icon: 'none'
            })
            return
          }
          wx.navigateBack()
          wx.showToast({
            title: "删除成功",
            icon: 'none'
          })
          const eventChannel = this.getOpenerEventChannel()
          eventChannel.emit('deleteMessage')
        })
      }
    })
  },

  toggleLike: function () {
    if (this.data.loading) {
      return
    }
    wx.showLoading({
      title: this.data.like ? '取消收藏' : '收藏中'
    })
    wx.cloud.callFunction({
      name: this.data.like ? 'deleteFavorite' : 'createFavorite',
      data: {
        msg_id: this.data.messageId
      }
    }).then(res => {
      wx.hideLoading()
      if (res.result.status !== 'OK') {
        wx.showToast({
          title: res.result.errMsg,
          icon: 'none'
        })
        return
      }
      wx.showToast({
        title: this.data.like ? '取消收藏成功' : '收藏成功',
        icon: 'none'
      })
      this.setData({
        like: !this.data.like
      })
    })
  },

  question: function () {
    if (this.data.questionText.length < 5) {
      wx.showToast({
        title: '提问字数至少为5',
        icon: 'none'
      })
    } else {
      wx.showLoading({
        title: '正在发送'
      })
      wx.cloud.callFunction({
        name: 'createQuestion',
        data: {
          msg_id: this.data.messageId,
          question: this.data.questionText
        }
      }).then(res => {
        wx.hideLoading()
        if (res.result.status !== 'OK') {
          wx.showToast({
            title: res.result.errMsg,
            icon: 'none'
          })
          return
        }
        wx.showToast({
          title: '发送成功，请等待发布者回复',
          icon: 'none'
        })
        this.setData({
          questionText: ''
        })
      })
    }
  },

  processCommonData: function (data) {
    let edit = false
    for (let i = 0; i < app.globalData.pubInfo.length; i++) {
      if (data.pub_id === app.globalData.pubInfo[i].pub_id) {
        edit = true
      }
    }
    this.setData({
      messageInfo: data,
      showEdit: edit
    })
  },

  loadExtraData: function () {
    this.setData({
      loading: true
    })
    wx.showNavigationBarLoading()
    const arr = []
    arr.push(wx.cloud.callFunction({
      name: 'listQuestions',
      data: {
        msg_id: this.data.messageId,
        page_token: this.data.pageToken,
        page_size: 20
      }
    }))
    arr.push(wx.cloud.callFunction({
      name: 'getFavorite',
      data: {
        msg_id: this.data.messageId
      }
    }))
    Promise.all(arr).then(res => {
      wx.hideNavigationBarLoading()
      if (res[0].result.status !== 'OK' || res[1].result.status !== 'OK') {
        wx.showToast({
          title: res[0].result.errMsg || res[1].result.errMsg,
          icon: 'none'
        })
        return
      }
      for (let i = 0; i < res[0].result.list.length; i++) {
        res[0].result.list[i].a_time = util.handleDate(res[0].result.list[i].a_time)
      }
      this.setData({
        messageQuestion: this.data.messageQuestion.concat(res[0].result.list),
        pageToken: res[0].result.next_page_token,
        like: res[1].result.total === 1,
        loading: false
      })
    })
  },

  /**
   * 生命周期函数--监听页面加载
   */
  onLoad: function (options) {
    this.setData({
      hasUserInfo: app.globalData.hasUserInfo
    })
    if (options.id) {
      this.setData({
        messageId: options.id
      })
      wx.showLoading({
        title: '正在加载'
      })
      wx.cloud.callFunction({
        name: 'getMessage',
        data: {
          msg_id: this.data.messageId
        }
      }).then(res => {
        wx.hideLoading()
        if (res.result.status !== 'OK') {
          wx.showToast({
            title: res.result.errMsg,
            icon: 'none'
          })
          return
        }
        res.result.data = util.dbToMsg(res.result.data)
        this.processCommonData(res.result.data)
        this.loadExtraData()
      })
    } else {
      const eventChannel = this.getOpenerEventChannel()
      eventChannel.once('loadCommonData', res => {
        this.setData({
          messageId: res.data._id,
        })
        this.processCommonData(res.data)
        this.loadExtraData()
        wx.cloud.callFunction({
          name: 'createRead',
          data: {
            msg_id: this.data.messageId
          }
        })
      })
    }
  },

  /**
   * 生命周期函数--监听页面初次渲染完成
   */
  onReady: function () {

  },

  /**
   * 生命周期函数--监听页面显示
   */
  onShow: function () {

  },

  /**
   * 生命周期函数--监听页面隐藏
   */
  onHide: function () {

  },

  /**
   * 生命周期函数--监听页面卸载
   */
  onUnload: function () {

  },

  /**
   * 页面相关事件处理函数--监听用户下拉动作
   */
  onPullDownRefresh: function () {

  },

  /**
   * 页面上拉触底事件的处理函数
   */
  onReachBottom: function () {
    if (this.data.loading) {
      return
    }
    this.loadExtraData()
  },

  /**
   * 用户点击右上角分享
   */
  onShareAppMessage: function () {

  }
})